#include <algorithm>
#include <cctype> //ctype无法打开，包含tolower()函数和ispunct函数
#include <fstream>
#include <iostream>
#include <list>
#include <map>
#include <set>
#include <string>
#include <utility> //保存pair的头文件
#include <vector>

using namespace std;

int main(int argc, char **argv) {
  string a;
  cin >> a;
  char *p = new char[2];
  strcpy(p, a.c_str());
  cout << p << endl;
  delete[] p; //一定要记得delete
  return 0;
}